I think I lucked out with a vague description ("dust covers", anyone?), and won a low-ball auction on what I figure to be a set of usable L110 grille frames (the nice see-through cloth as shown in my avatar is shot) and what looks to be a decent pair of unknown JBL grilles. Anybody have a guess as to what the blue grilles are from? I'll have more detail once they arrive, but here's the pic from the auction: